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[infiniband] Parse MLID, rate, and SL from multicast membership record

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2016-03-08 09:54:42 +00:00
parent c335f8eae4
commit 14ad9cbd67
3 changed files with 74 additions and 62 deletions
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57
src/net/infiniband/ib_mcast.c
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@@ -42,11 +42,12 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
* Generate multicast membership MAD
*
* @v ibdev Infiniband device
* @v gid Multicast GID
* @v av Address vector
* @v join Join (rather than leave) group
* @v mad MAD to fill in
*/
static void ib_mcast_mad ( struct ib_device *ibdev, union ib_gid *gid,
static void ib_mcast_mad ( struct ib_device *ibdev,
struct ib_address_vector *av,
int join, union ib_mad *mad ) {
struct ib_mad_sa *sa = &mad->sa;
@@ -61,7 +62,7 @@ static void ib_mcast_mad ( struct ib_device *ibdev, union ib_gid *gid,
htonl ( IB_SA_MCMEMBER_REC_MGID | IB_SA_MCMEMBER_REC_PORT_GID |
IB_SA_MCMEMBER_REC_JOIN_STATE );
sa->sa_data.mc_member_record.scope__join_state = 1;
memcpy ( &sa->sa_data.mc_member_record.mgid, gid,
memcpy ( &sa->sa_data.mc_member_record.mgid, &av->gid,
sizeof ( sa->sa_data.mc_member_record.mgid ) );
memcpy ( &sa->sa_data.mc_member_record.port_gid, &ibdev->gid,
sizeof ( sa->sa_data.mc_member_record.port_gid ) );
@@ -75,20 +76,19 @@ static void ib_mcast_mad ( struct ib_device *ibdev, union ib_gid *gid,
* @v madx Management transaction
* @v rc Status code
* @v mad Received MAD (or NULL on error)
* @v av Source address vector (or NULL on error)
* @v src Source address vector (or NULL on error)
*/
static void ib_mcast_complete ( struct ib_device *ibdev,
struct ib_mad_interface *mi __unused,
struct ib_mad_transaction *madx,
int rc, union ib_mad *mad,
struct ib_address_vector *av __unused ) {
struct ib_address_vector *src __unused ) {
struct ib_mc_membership *membership = ib_madx_get_ownerdata ( madx );
struct ib_queue_pair *qp = membership->qp;
union ib_gid *gid = &membership->gid;
struct ib_address_vector *av = membership->av;
struct ib_mc_member_record *mc_member_record =
&mad->sa.sa_data.mc_member_record;
int joined;
unsigned long qkey;
/* Report failures */
if ( ( rc == 0 ) && ( mad->hdr.status != htons ( IB_MGMT_STATUS_OK ) ))
@@ -101,13 +101,17 @@ static void ib_mcast_complete ( struct ib_device *ibdev,
/* Extract values from MAD */
joined = ( mad->hdr.method == IB_MGMT_METHOD_GET_RESP );
qkey = ntohl ( mc_member_record->qkey );
DBGC ( ibdev, "IBDEV %s QPN %#lx %s " IB_GID_FMT " qkey %lx\n",
av->qkey = ntohl ( mc_member_record->qkey );
av->lid = ntohs ( mc_member_record->mlid );
av->rate = ( mc_member_record->rate_selector__rate & 0x3f );
av->sl = ( ( ntohl ( mc_member_record->sl__flow_label__hop_limit )
>> 28 ) & 0x0f );
DBGC ( ibdev, "IBDEV %s QPN %#lx %s " IB_GID_FMT " qkey %#lx\n",
ibdev->name, qp->qpn, ( joined ? "joined" : "left" ),
IB_GID_ARGS ( gid ), qkey );
IB_GID_ARGS ( &av->gid ), av->qkey );
/* Set queue key */
qp->qkey = qkey;
qp->qkey = av->qkey;
if ( ( rc = ib_modify_qp ( ibdev, qp ) ) != 0 ) {
DBGC ( ibdev, "IBDEV %s QPN %#lx could not modify qkey: %s\n",
ibdev->name, qp->qpn, strerror ( rc ) );
@@ -120,7 +124,7 @@ static void ib_mcast_complete ( struct ib_device *ibdev,
membership->madx = NULL;
/* Hand off to upper completion handler */
membership->complete ( ibdev, qp, membership, rc, mad );
membership->complete ( membership, rc );
}
/** Multicast membership management transaction completion operations */
@@ -134,21 +138,20 @@ static struct ib_mad_transaction_operations ib_mcast_op = {
* @v ibdev Infiniband device
* @v qp Queue pair
* @v membership Multicast group membership
* @v gid Multicast GID to join
* @v av Address vector to fill in
* @v joined Join completion handler
* @ret rc Return status code
*/
int ib_mcast_join ( struct ib_device *ibdev, struct ib_queue_pair *qp,
struct ib_mc_membership *membership, union ib_gid *gid,
void ( * complete ) ( struct ib_device *ibdev,
struct ib_queue_pair *qp,
struct ib_mc_membership *membership,
int rc, union ib_mad *mad ) ) {
struct ib_mc_membership *membership,
struct ib_address_vector *av,
void ( * complete ) ( struct ib_mc_membership *membership,
int rc ) ) {
union ib_mad mad;
int rc;
DBGC ( ibdev, "IBDEV %s QPN %#lx joining " IB_GID_FMT "\n",
ibdev->name, qp->qpn, IB_GID_ARGS ( gid ) );
ibdev->name, qp->qpn, IB_GID_ARGS ( &av->gid ) );
/* Sanity checks */
assert ( qp != NULL );
@@ -156,11 +159,11 @@ int ib_mcast_join ( struct ib_device *ibdev, struct ib_queue_pair *qp,
/* Initialise structure */
membership->qp = qp;
memcpy ( &membership->gid, gid, sizeof ( membership->gid ) );
membership->av = av;
membership->complete = complete;
/* Attach queue pair to multicast GID */
if ( ( rc = ib_mcast_attach ( ibdev, qp, gid ) ) != 0 ) {
if ( ( rc = ib_mcast_attach ( ibdev, qp, &av->gid ) ) != 0 ) {
DBGC ( ibdev, "IBDEV %s QPN %#lx could not attach: %s\n",
ibdev->name, qp->qpn, strerror ( rc ) );
goto err_mcast_attach;
@@ -168,7 +171,7 @@ int ib_mcast_join ( struct ib_device *ibdev, struct ib_queue_pair *qp,
membership->attached = 1;
/* Initiate multicast membership join */
ib_mcast_mad ( ibdev, gid, 1, &mad );
ib_mcast_mad ( ibdev, av, 1, &mad );
membership->madx = ib_create_madx ( ibdev, ibdev->gsi, &mad, NULL,
&ib_mcast_op );
if ( ! membership->madx ) {
@@ -183,7 +186,7 @@ int ib_mcast_join ( struct ib_device *ibdev, struct ib_queue_pair *qp,
ib_destroy_madx ( ibdev, ibdev->gsi, membership->madx );
err_create_madx:
ib_mcast_detach ( ibdev, qp, gid );
ib_mcast_detach ( ibdev, qp, &av->gid );
membership->attached = 0;
err_mcast_attach:
return rc;
@@ -198,7 +201,7 @@ int ib_mcast_join ( struct ib_device *ibdev, struct ib_queue_pair *qp,
*/
void ib_mcast_leave ( struct ib_device *ibdev, struct ib_queue_pair *qp,
struct ib_mc_membership *membership ) {
union ib_gid *gid = &membership->gid;
struct ib_address_vector *av = membership->av;
union ib_mad mad;
int rc;
@@ -207,13 +210,13 @@ void ib_mcast_leave ( struct ib_device *ibdev, struct ib_queue_pair *qp,
return;
DBGC ( ibdev, "IBDEV %s QPN %#lx leaving " IB_GID_FMT "\n",
ibdev->name, qp->qpn, IB_GID_ARGS ( gid ) );
ibdev->name, qp->qpn, IB_GID_ARGS ( &av->gid ) );
/* Sanity check */
assert ( qp != NULL );
/* Detach from multicast GID */
ib_mcast_detach ( ibdev, qp, &membership->gid );
ib_mcast_detach ( ibdev, qp, &av->gid );
membership->attached = 0;
/* Cancel multicast membership join, if applicable */
@@ -223,7 +226,7 @@ void ib_mcast_leave ( struct ib_device *ibdev, struct ib_queue_pair *qp,
}
/* Send a single group leave MAD */
ib_mcast_mad ( ibdev, &membership->gid, 0, &mad );
ib_mcast_mad ( ibdev, av, 0, &mad );
if ( ( rc = ib_mi_send ( ibdev, ibdev->gsi, &mad, NULL ) ) != 0 ) {
DBGC ( ibdev, "IBDEV %s QPN %#lx could not send leave request: "
"%s\n", ibdev->name, qp->qpn, strerror ( rc ) );